Electrical water-heater.



No, 879,498, PTBNTED F5318; 1908.

SHGENBERG.

LEGTREGAL WATER HEME APPLIGATIO- ELEI) JUNE 5,1907.

IN y ENTGR A TTONNE Y intron n. snoENBERc, or SAN FRANCISCO, CALIFORNIA.

ELECTRICAL WATER-HEATER.

:Specification of Letters Patent.

Patented Feb. 18, 1908.

application tiled June 5, 1907. Serial No. 377322. i

To all wher/t 'it may concern.'

Een known that i, MILTON H. snow;

BERG, citizen of United States, residing in the city and county of San Francisco and State ol California, have invented new and -ratus Y switch mechanism Fig. 8 1s a vertical section of the apparatus taken at right angles with Fig. 1.l

1t is the object otmy invention to provide a device for heating water by the passage ofA an electric current through the-body of water to be heated, and in a mechanism whereby the electric current is prevented from lowing through the heating means at all times when water is not also flowing; the operation of one control being coincident with that of the other.

which water. is delivered into the Ilyiy apparatus consists of a water-containing" chamber A having an inlet pipe 2 by ower part ofthe chamber' to rise therein, and an outlet pipe having its receiving end in the upper.

part 'of the chamber so as to receive the hottest of the water, and a dischargenoz-zle 4 at the bottom through which the Water may be delivered. The apparatus is preferablymounted upon an insulating slab or support as at 5, butany convenient support vmay be ein loyed with the suitable insulations.

rllhe water supply is controlled by a cock at 6 having an extension or shaft 7, which is cut away or ilattened on one side as at 8, so that when this flattened side is turned to stand in a vertical position, the water-cock will be o cned and when turned to stand horizonte ly, it will be closed.

The electrical current may enter the apparatus throu h a connection as shown at 9, and passing into the interior of the apparatus the Wires connect with a conductor as at 10, within the water-heating chamber, and through a vertical standard as at 11, the cur rent Vpasses to a cross-bar 1la-which may be formed by bending the standard 11 at right angles, or forming it in a circle,l 'or other suitable or desired shape for .theattachinent of wire 'coils 12. These coils are-oll naked wire having such interspaces between their windings as to prevent any sh'ort-circuiting of an electrical current, this electrical current passing around the whole length of the coilshwhich coils are connected at the lower end with a conductor as at 13, through which and connected wires the circuit is completed to the switch. A sullicient number of these coils are contained within the water-chamber, preferably parallel with each other, and eX- tending from top to bottom to rapidly heat thewater which enters the chamber as before described through the pipe 2, and is discharged through the outlet pipe 4.

The switch connections are represented by the contact plates 15 and 15a with each ot which .one otl the conducting wires is connected. y

16 is a bar or equivalent slidable part which is here shown carrying cross-bars 17 and 17a in such relation with the contact plates 15 and 15EL that when the slide 16 lis raised or otherwise moved with relation to the contacts 15-153, the bars 17-171'Will be brought into contact with the plates 15-15ai and thus establish the circuit. When they are' 'moved away from these plates, the circuit is interrupted. This movement is interrupted by means of a ulcrumed lever 18 which is suitably connected with the slide 16. In the present case I have shown the connection as made by a pin upon the end of a lever 18,entering a slot 19 in the slide 16, which slot' has sufficient length to allow the pin to move in the necessary curve to properly move the slide 16. In order to prevent this contact being completed when the'water is not on, the lever 18 is ulcrumed in such position with relation to the stem 7 of the Water-'cock that when the cock is closed the full 'diameter is interposed so that the lever 18 Will contact Withone side of the stern if-any attempt-is made to energize the heatingcoils, and such attempt will be frustrated. When however the-water-cock has been opened, the stem 7 will have been turned so that the flattened side will be in vertical plane, and in the line of travel ofthe lever 18, and will thus leave suflicient space for the movement of this lever. Thisconstruction allows Watertnbe tiu'ned .on and drawn H cold, through the apparatus, if'

`from theheating chamber at any time, it

may be done through a discharge pipe or passage at 21, which may be either independent or connected with the inlet pipe 2 by `means of a E'coupling as at 22, and a suitable valve or cock by which thev dis-v charge passage may be opened when the cock 6 has been closed.

Having thus described my invention, what I claim and desire to secure by Letters- Patent is- .1. An electrical water-heater consisting. of

' a water-receiver having inlet and discharge passages, a series of naked electrical coils out of contact, extending through the chamber, a standard extending in the direction' of the lengthof the water receiver, ,contacts with whichthe opposite ends of the. coils are connected, one of said contacts being iixedly connected to thestandard and extending transverse of `the latter a slidable switch adapted to make or break the circuit by con-l tact with or separation from said plates, -a lever by which the device is actuated, a water-supply cock having a cylindrical stem extending into the plane of movement of ther switch lever, said lever operating in a plane substantially parallel with the axis of the stem and said stem being cut away on one side to allow the switch lever to move when the water-cock is opened, and to preventit from moving when said cock is closed.

2. In a water and like heating apparatus, a receiver with supply and discharge means, and internallydisposed heating coils, means by which an electrical current may be assed through the coils,` said means inclu 'ng a standard within and parallel with the reand to which'the opposite ends of the coils 'are connected, one of said cross-bars being fixed to the standard -a current controlling switch, and a water supply faucet, said faucet being so disposed as to prevent the'closing of the circuit while the faucet is closed.

3. In an electrical water-heater, the combination of a water receptacle having inlet ,and outlet passages, a heating coil in said receptacle, electrical connections with opposite endsof said heating coil, connections com rising a standard. extending longitudinally of the receptacle and having its upper endbent transversely, said, end and a cor-v responding part in the opposite end of ythe receptacleormingcontacts to which the opposite ends of thelcoil areconnected a cock controlling theinlet'of water to they receptacle, a switch .in said electrical connections, said cock having a movable part co-acting with the switch to prevent the closing of the electrical circuit when the cock is closed, and saidpart loperable independent of the switch to permit hot or coldwater to be drawn.

' 4. In an electrical water-heater, the combination of a wateri'eceptacle having inlet and outlet as'sage's,- a heating coil in said receptacle, e ectrical connectionswith opposite. ends of said heating'coiL, a ,cock controlling the inlet of water to the'r'eceptacle, a switch in said electrical connections, said cock having a turn'able stemwith a attened portion, saidattened portion. turna'ble into planes at right angles to eachother, and said flattened. portion forming a stop Ato the movement of the switch when the cock is closed, but permitting the operation of the switch when the cock is open.

Intestimony whereof- I have hereunto s et my hand in presence of two subscribing witnesses.

MILTGN H. SHUENBERG. Witnesses:

' EUGENE W. LEVY,

F. H. Manzanos. 

